laravel firebase/php-jwt token验证
1、说明
这里的jwt和之前另外一篇的jwt有些不一样,之前的是基于用户的接口验证,即需要接口登录,此jwt则是基于一个唯一标识,如移动设备唯一ID或手机号码等能够作为唯一标识的数据信息,通过它来完成token签发、验证。
2、安装
composer require firebase/php-jwt
3、使用
3.1、签发token
public function createToken()
{
$key = '344'; //key,唯一标识
$time = time(); //当前时间
$token = [
'iat' => $time, //签发时间
'nbf' => $time , //(Not Before):某个时间点后才能访问,比如设置time+30,表示当前时间30秒后才能使用
'exp' => $time+7200, //过期时间,这里设置2个小时
'data' => [ //自定义信息,不要定义敏感信息
'device_id' => 'asdfghj',
]
];
$token = JWT::encode($token, $key,'HS256'); //签发token
$data = ['error'=>0,'mgs'=>'success','data'=>['token'=>$token]];
return json_encode($data);
}
3.2、验证token
// $token:签发的token
public function verifyToken($token)
{
$key = '344'; //key要和签发的时候一样,唯一标识
try {
JWT::$leeway = 60;//当前时间减去60,把时间留点余地
$decoded = JWT::decode($token, $key, ['HS256']); //HS256方式,这里要和签发的时候对应
$arr = (array)$decoded;
print_r($arr);
} catch(\Firebase\JWT\SignatureInvalidException $e) { //签名不正确
echo $e->getMessage();
}catch(\Firebase\JWT\BeforeValidException $e) { // 签名在某个时间点之后才能用
echo $e->getMessage();
}catch(\Firebase\JWT\ExpiredException $e) { // token过期
echo $e->getMessage();
}catch(Exception $e) { //其他错误
echo $e->getMessage();
}
}
4、综合运用
4.1、使用场景
项目中app接口需要接口验证,又不要登录,app端能够提供1个唯一标识设备唯一ID,通过这个ID生成token,并通过这个ID和token来完成接口验证。
4.2、使用
①、安装
composer require firebase/php-jwt
②、封装2个方法
1个用来生成token,1个用来刷新token
key:设备唯一ID的加密字符串,接口请求时也需要提供,验证的时候需要用到
/**
* 生成并返回token
* @return bool|string
*/
public function getToken($param)
{
$deviceId = isset($param['device_id']) ? $param['device_id'] : '';
//device_id做为唯一标识
if(empty($deviceId)){
return $this->responseInvalidParams('device_id is empty');
}
$key = encrypt($deviceId); //key
$time = time(); //当前时间
$overtime = 7200;
$token = [
'iat' => $time, //签发时间
'nbf' => $time , //(Not Before):某个时间点后才能访问,比如设置time+30,表示当前时间30秒后才能使用
'exp' => $time+$overtime, //过期时间,这里设置2个小时
];
if(!$token = JWT::encode($token, $key,'HS256')){
\Log::error('app api operation failed:key='.$key.', token='.$token);
return response()->json(['error'=>1,'msg'=>'operation failed','data'=>[]]);
}
return response()->json(['error'=>0,'msg'=>'ok','data'=>['key'=>$key,'token'=>$token,'expire'=>$overtime]]);
}
/**
* 重新生成并返回token
* @return bool|string
*/
public function refreshToken($key)
{
if(empty($key)){
return $this->responseInvalidParams('key is empty');
}
$newKey = encrypt(decrypt($key));//重新生成key
$time = time(); //当前时间
$overtime = 7200;
$token = [
'iat' => $time, //签发时间
'nbf' => $time , //(Not Before):某个时间点后才能访问,比如设置time+30,表示当前时间30秒后才能使用
'exp' => $time+$overtime, //过期时间,这里设置2个小时
];
if(!$token = JWT::encode($token, $newKey,'HS256')){
\Log::error('app api operation failed:key='.$newKey.', token='.$token);
return response()->json(['error'=>1,'msg'=>'operation failed','data'=>[]]);
}
return response()->json(['error'=>0,'msg'=>'ok','data'=>['key'=>$key,'token'=>$token,'expire'=>$overtime]]);
}
③、定义1个中间件
通过中间件,让接口每次请求是都去验证token
php artisan make:middleware VerifySign //生成中间件
VerifySign:验证token
<?php
namespace App\Http\Middleware;
use Closure;
use Exception;
use Firebase\JWT\JWT;
class VerifySign
{
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
$result = ['error'=>0,'msg'=>'','data'=>[]];
$key = $request->header('key');
$token = $request->header('token');
if(empty($key) || empty($token)){
$result['error'] = 403;
$result['msg'] = 'headers param error';
\Log::error('app api headers param error:key='.$key.', token='.$token);
return response()->json($result);
}
try {
JWT::$leeway = 60;//当前时间减去60,把时间留点余地
if(!$rs = JWT::decode($token, $key, ['HS256'])){//HS256方式,这里要和签发的时候对应
$result['error'] = 403;
$result['msg'] = 'validation failure';
\Log::error('app api validation failure:key='.$key.', token='.$token);
return response()->json($result);
}
} catch(\Firebase\JWT\SignatureInvalidException $e) { //签名不正确
$error = $e->getMessage();
}catch(\Firebase\JWT\BeforeValidException $e) { // 签名在某个时间点之后才能用
$error = $e->getMessage();
}catch(\Firebase\JWT\ExpiredException $e) { // token过期
$error = $e->getMessage();
}catch(Exception $e) { //其他错误
$error = $e->getMessage();
}
if(!empty($error)){
$result['error'] = 403;
$result['msg'] = $error;
\Log::error('app api error:'.$error);
return response()->json($result);
}
return $next($request);
}
}
④、app/Http/Kernel.php 应用的路由中间件列表
protected $routeMiddleware = [
//...
'app.sign' => \App\Http\Middleware\VerifySign::class,
];
⑤、定义路由
routes/api.php
Route::get('auth/token', 'App\System\UserController@getToken');//获取token
//需要通过验证token的路由
Route::group(['namespace' => 'App','middleware' => ['app.sign']], function () {
Route::get('/auth/refresh/token', 'System\UserController@refreshToken');//刷新token
Route::get('/home/index', 'Home\IndexController@index');//首页
//...
});
⑥、控制器中
调用前面封装好的操作token方法
//获取token
public function getToken(Request $request)
{
return $this->biz->getToken($request->all());
}
//刷新token
public function refreshToken(Request $request)
{
return $this->biz->refreshToken($request->header('key'));
}
⑦、结果
请求生成token: http://xx.com/api/auth/token?device_id=15616513
结果:
{
"error": 0,
"msg": "ok",
"data": {
"key": "eyJpdiI6InloN1NNc3R5aVdzWE9WZjdoYzFFXC9nPT0iLCJ2YWx1ZSI6ImxSTE1YOXJ0bllDMERseEFiaWc0a1E9PSIsIm1hYyI6IjM5ZjAzM2U0OWNhNzY1NjRkNzY1N2RjZmQwYmNlMDYwNWMzZjM0MDJkNTRlODg3OWI3NGE5MmY2MzA2YmFjYTQifQ==",
"token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpYXQiOjE1NjQ3OTgyNjksIm5iZiI6MTU2NDc5ODI2OSwiZXhwIjoxNTY0ODA1NDY5fQ.T8e4eCBfU6AeZ5RpRLPGTgd5MaY5asyglfV7s-1A57M",
"expire": 7200
}
}
请求刷新token:
{
"error": 0,
"msg": "ok",
"data": {
"key": "eyJpdiI6Inl1enBMXC9EMkpJVGROTWdMdGI1UUZRPT0iLCJ2YWx1ZSI6IkozMEhJbWMydlNtR3h6dkNQVnJKaUE9PSIsIm1hYyI6ImI3MWYyZjUxY2I5OTEyZjQyZjFjODQwNTlkMDAwYjA0YmEzYWY3YmRlNzdjOGU4ZGVhZmM0YTNkZmE3MDEwYWMifQ==",
"token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpYXQiOjE1NjQ3OTg2NjMsIm5iZiI6MTU2NDc5ODY2MywiZXhwIjoxNTY0ODA1ODYzfQ.c1mlhyP8SmfaCHFx7d8CeaL1SjdGVaXUXDkBEuKn3uo",
"expire": 7200
}
}
其它定义了app.sign中间件中的路由请求接口时都需要携带key和token